2.6.11-r1 freezes dual 2.5 GHz PowerMac G5

2.6.11-r1 freezes dual 2.5 GHz PowerMac G5

[Maurice Volaski]

I am running Gentoo with a fresh 2.6.11-r1. I have all the kernel 
debugging options turned on. Occasionally, I can get past the boot 
process, but half the time it freezes somewhere along the way. If 
not, I do get to boot, it doesn't take very long for it to freeze.

Any suggestions for how this can be debugged further?

other keywords: PowerPC, ppc, ppc64, Apple, freeze, freezing, 
freezes, hang, hangs, froze, frozen, locks up, locked up, hard lock.
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Maurice Volaski, mvolaski@aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University

Re: 2.6.11-r1 freezes dual 2.5 GHz PowerMac G5

[Mikael Pettersson]

Maurice Volaski writes:
 > I am running Gentoo with a fresh 2.6.11-r1. I have all the kernel 
 > debugging options turned on. Occasionally, I can get past the boot 
 > process, but half the time it freezes somewhere along the way. If 
 > not, I do get to boot, it doesn't take very long for it to freeze.

Did 2.6.10 work Ok? Try the patch below, it fixes 2.6.11-rc1 boot
lockups on both my Beige G3 (locks up in ADB driver) and my G4 eMac
(locks up in radeonfb).

--- linux-2.6.11-rc1/init/main.c.~1~	2005-01-15 03:30:25.000000000 +0100
+++ linux-2.6.11-rc1/init/main.c	2005-01-15 03:31:44.000000000 +0100
@@ -377,7 +377,7 @@ static void noinline rest_init(void)
 	 * Re-enable preemption but disable interrupts to make sure
 	 * we dont get preempted until we schedule() in cpu_idle().
 	 */
-	local_irq_disable();
+//	local_irq_disable();
 	preempt_enable_no_resched();
 	unlock_kernel();
  	cpu_idle();

Re: 2.6.11-r1 freezes dual 2.5 GHz PowerMac G5

[Maurice Volaski]

The patch below works. Thanks.

>Maurice Volaski writes:
>  > I am running Gentoo with a fresh 2.6.11-r1. I have all the kernel
>  > debugging options turned on. Occasionally, I can get past the boot
>  > process, but half the time it freezes somewhere along the way. If
>  > not, I do get to boot, it doesn't take very long for it to freeze.
>
>Did 2.6.10 work Ok? Try the patch below, it fixes 2.6.11-rc1 boot
>lockups on both my Beige G3 (locks up in ADB driver) and my G4 eMac
>(locks up in radeonfb).
>
>--- linux-2.6.11-rc1/init/main.c.~1~	2005-01-15 03:30:25.000000000 +0100
>+++ linux-2.6.11-rc1/init/main.c	2005-01-15 03:31:44.000000000 +0100
>@@ -377,7 +377,7 @@ static void noinline rest_init(void)
>  	 * Re-enable preemption but disable interrupts to make sure
>  	 * we dont get preempted until we schedule() in cpu_idle().
>  	 */
>-	local_irq_disable();
>+//	local_irq_disable();
>  	preempt_enable_no_resched();
>  	unlock_kernel();
>  	cpu_idle();


-- 

Maurice Volaski, mvolaski@aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University